WHAT IS JAMES WEBB TELESCOPE?

NASA’s James Webb Space Telescope (JWST) is an infrared space observatory that launched on Dec 25, 2021, from ESA’s launch site at Kourou in French Guiana, at 7:20 a.m. EST (1220 GMT; 9:20 a.m. local time in Kourou), aboard an Arianespace Ariane 5 rocket. 

NASA released the first scientific images from Webb at a live event on July, 12. Explore the first images in more detail and what it means for JWST science in our recently published article.

The $10 billion James Webb Space Telescope — NASA’s largest and most powerful space science telescope — will probe the cosmos to uncover the history of the universe from the Big Bang to alien planet formation and beyond. It is one of NASA’s Great Observatories, huge space instruments that include the likes of the Hubble Space Telescope to peer deep into the cosmos.

The release of the first full-colour images and spectroscopic data will mark the beginning of the next era in astronomy as Webb will help answer questions about the earliest moments of the universe and allow astronomers to study exoplanets in greater detail than ever before. James Webb was launched in December to succeed the revolutionary – but now ageing-Hubble Space Telescope. The James Webb Space Telescope uses a 19.7-foot-tall primary mirror to collect light. That light is bounced to a smaller secondary mirror, which then redirects it onto the telescope’s instruments, including a camera that records an image.

While Hubble looks mostly in the visual and ultraviolet parts of the electromagnetic spectrum, Webb will look at longer wavelengths in the infrared, to see what the universe looked like around 100 to 250 million years after the Big Bang, when the first stars and galaxies were formed.

Early alignment imagery already demonstrated the unprecedented sharpness of Webb’s infrared view. However, these new images will be the first in full colour and the first to showcase Webb’s full science capabilities.

Credit : Space.com 

Picture Credit : Google 

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